Bench Test Procedure for a 776 and 777 Off-Highway Truck Transmission {3030, 3073} Caterpillar

Tractor

776 (S/N: 14H1-UP)

Truck

777 (S/N: 84A1-UP)

Introduction

Table 1

Revision	Summary of Changes in REHS2280
02	Standardized.
01	Added new Introduction and Canceled Part Numbers section.

© 2016 Caterpillar All Rights Reserved. This guideline is for the use of Cat dealers only. Unauthorized use of this document or the proprietary processes therein without permission may be violation of intellectual property law. Information contained in this document is considered Caterpillar: Confidential Yellow.

This special instruction contains the necessary information that is required to bench test- specific transmission arrangements. Refer to Table 2 for the correct arrangements. Bench testing the transmission ensures correct assembly and operation of the component. Rotating a transmission provides the most conclusive evaluation. This allows the dealer to ensure that the transmission will operate properly in the machine. The specifications in this guideline are specific to bench testing the component. Every effort has been made to provide the most current information that is known to Caterpillar. Continuing improvement and advancement of product design might have caused changes to your product which are not included in this publication. This guideline must be used with the latest technical information that is available from Caterpillar.

For questions or additional information concerning this guideline, submit a form for feedback in the Service Information System. To address an urgent issue, use the following resources to communicate your request to Caterpillar Repair Process Engineering:

• Cat Dealer Techinical Communicator

• Dealer Solution Network

• Cat Technical Representative

• Knowledge Network

Table 2

Machine Model	Transmission Arrangement
776	9G-9272
777	9G-9272

Canceled Part Numbers and Replaced Part Numbers

This document may include canceled part numbers and replaced part numbers. Use NPR on SIS for information about canceled part numbers and replaced part numbers. NPR will provide the current part numbers for replaced parts.

Important Safety Information

Illustration 1	g02139237

Follow all safety warnings. Most accidents that involve product operation, maintenance, or repair are caused by failure to observe safety warnings. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs. Personnel must be properly trained to perform maintenance, repair, or operate any machine. Safety precautions and warnings are provided this instruction and on Caterpillar products. These warnings should be observed before performing any procedures. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The warnings in this publication and on the product are not all inclusive.

The hazards are identified by the “Safety Alert Symbol” which is followed by a “Signal Word” such as “DANGER”, “WARNING, or” “CAUTION”. The “WARNING” Safety Alert Symbol is shown in illustration below.

Illustration 2	g00008666

This safety alert symbol means:

Pay Attention!

Become Alert!

Your Safety is Involved.

The message that appears under the safety alert symbol explains the hazard.

Operations that may cause product damage are identified by "NOTICE" labels on the product and in this publication.

Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard. The safety information in this document and the safety information on the machine are not all inclusive. Determine that the tools, procedures, work methods, and operating techniques are safe. Determine that the operation, lubrication, maintenance, and repair procedures will not damage the machine. Also, determine that the operation, lubrication, maintenance, and repair procedures will not make the machine unsafe.

The information, the specifications, and the illustrations that exist in this guideline are based on information which was available at the time of publication. The specifications, torques, pressures, measurements, adjustments, illustrations, and other items can change at any time. These changes can affect the service that is given to the product. Obtain the complete, most current information before you start any job. Caterpillar dealers can supply the most current information.

Collecting the Test Data

Since conditions vary for each test bench, use the data that is collected from your test bench. The collected data is used to compare test results. The data should be collected and maintained by the operator.

Data from each transmission arrangement is collected and stored. Averages from each transmission arrangement are used to compare values on portions of this transmission test. Always compare data that is collected from the same transmission arrangement that is being tested. Averages for the last 20 transmission arrangements should be maintained.

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Personal injury or death can result from escaping fluid under pressure. Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue and cause serious injury and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury. Always use a board or cardboard when checking for a leak.

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Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.

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Personal injury or death can result from not following the proper procedures. To avoid the possibility of injury or death, follow the established procedure.

Tools Needed

Note: Pressures will be sensitive to tooling setup. The diameter of the hose, the diameter of a fitting, and additional filtering can affect pressure. The required tools that are listed in Table 3 were used to develop this test procedure. For additional information about tooling, consult Caterpillar Service Tools Division (800) 542-8665.

Table 3

Required Tools
Tool	Part Number	Part Description	Qty
A	1U-9584	Rail As	2
	1U-9586	Swivel Head Support Gp	2
	1U-9585	Block Gp (Transmission Mounting)	1
	FT-2278	Swivel Support	2
B	4C-9908	Drive Adapter	1
	5B-0841	Bolt (5/8-18X1.75 inch)	4
	3B-4510	Lockwasher	4
C	1U-9131	Drive Adapter (Key)(1)	1
D	1U-9359	Drive Adapter(2)	1
E	FT-0970	Output Support Adapter	1
F	FT-1325	Output Support Plate	1
	FT-1325	Bearing	1
G	1U-9722	Load Binder As (Ratchet Type)	3
	439-3939	Link Bracket As	2
	1A-8063	Bolt (3/4-10X2.5 inch)	2
	5P-8248	Hard Washer	2
	2J-3506	Full Nut	2
H	3B-6552	Elbow	1
	3B-7282	Pipe Nipple	1
	6V-4142	Fitting (Test)	1
Q	4C-4897	Cover (Transmission Test)	1
J	1P-4578	Half Flange	2
	9U-7445	Adapter As	1
	1U-8301	Fitting	1
	8C-9024	Fitting As (Plain)	1
	6V-3965	Fitting As (Quick Disconnect)	1
	3J-1907	O-Ring Seal	1
	8T-6973	Bolt (7/16-14X1.125 inch)	4
	8T-5360	Hard Washer	4
K	1P-4578	Half Flange	2
	9U-7445	Adapter As	1
	1U-8301	Fitting	1
	8C-9024	Fitting As (Plain)	1
	6V-3965	Fitting As (Quick Disconnect)	1
	3J-1907	O-Ring Seal	1
	8T-6973	Bolt (7/16-14X1.125 inch)	4
	8T-5360	Hard Washer	4
L	8C-9024	Fitting As (Plain)	1
	8C-9025	Quick Coupler	1
	3B-7749	Fitting	1
	120-6843	Ball Valve	1
M	1P-4578	Half Flange	2
	9U-7445	Adapter As	1
	1U-8304	Fitting (45 Degree)	1
	8C-9024	Fitting As (Plain)	1
	6V-3965	Fitting As (Quick Disconnect)	1
	3J-1907	O-Ring Seal	1
	8T-6973	Bolt (7/16-14X1.125 inch)	4
	8T-5360	Hard Washer	4
N	8T-0855	Pressure Gauge (0 to 4,000 kPa (0 to 580 psi))	10
	6V-4143	Coupler	10
R	8T-0863	Pressure Gauge (0 to 250 kPa (0 to 36 psi))	1
	6V-4143	Coupler	1
P	9U-7500	Transmission Analyzer Tool Gp	1
	OR
	277-2362	Transmission Analyzer Gp	1
	9U-7498	Adapter Cable As (Transmission Analyzer)	1
	1U-9482	Adapter Cable As	1
	4C-5974	Cable Adapter	2

(1)	This drive adapter is used with the small drive shaft.
(2)	This drive adapter is used with the large drive shaft.

FT Drawings

Illustration 3	g03836221
FT-2278

Illustration 4	g06049875
FT-0970 (Part 1)

Illustration 5	g06049895
FT-0970 (Part 2)

Illustration 6	g06049883
FT-0970 (Part 3)

Illustration 7	g06052922
FT-1325 (Part 1)

Illustration 8	g06052948
FT-1325 (Part 2)

Installation Procedure

Illustration 9	g06050167

1. Install Tooling (A) on the rails of the test bench.
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   Illustration 10	g01105218

2. Use a hoist to install the transmission on the test bench. The weight of the transmission is 1696 kg (3740 lb).
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   Illustration 11	g01105221

3. Install Tooling (B) to the input yoke.
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   Illustration 12	g01105232

4. Install Tooling (C) on Tooling (B).

   Note: Tooling (C) will adapt to the small drive shaft. If you are using the large drive shaft, install Tooling (D) on Tooling (C).

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   Illustration 13	g01105261

5. Align the transmission with the input drive shaft.

6. Connect the input drive shaft to Tooling (C).
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   Illustration 14	g01105266

7. Install the drive shaft guard.
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   Illustration 15	g03802221

8. Tighten all four castle nuts and jack bolts.
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   Illustration 16	g01105379

9. Use a hoist to remove shipping cover (1). The weight of shipping cover (1) is 50 kg (110 lb).

10. Remove the snap ring and the adapter from the output shaft of the transmission.

11. Install Tooling (E) and the snap ring on the end of the output shaft.
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    Illustration 17	g01091513

12. Use a hoist to install Tooling (F) on the transmission case.
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    Illustration 18	g01105470

13. Install two bolts in the bottom locations.
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    Illustration 19	g01105467

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    Illustration 20	g01105487

14. Install Tooling (G) in the top locations.
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    Illustration 21	g01108942

15. Install Tooling (G) to the input end and the output end of the transmission.

16. Remove oil drain plugs from the transmission case.

17. Remove the transmission cover.
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    Illustration 22	g01105815

18. Remove plug (2).
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    Illustration 23	g01105824

19. Install Tooling (H).
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    Illustration 24	g03123236

20. Install Tooling (Q).
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    Illustration 25	g01105938

21. Install Tooling (J).

22. Install Tooling (K).

23. Connect Tooling (L) to Tooling (K).

24. Install Tooling (M).
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    Illustration 26	g01106342
    (3) Transmission Lubrication Oil (4) Oil Cooler Outlet (5) Supply Oil

25. Connect hose assembly (3) from the No. 2 flow meter outlet to Tooling (J).

26. Connect hose assembly (4) from Tooling (L) to the No. 2 flow meter inlet.

    Note: The No. 2 flow meter will measure the output flow that is returning to the lube port.

27. Connect hose assembly (5) from the pressurized flow meter to Tooling (M).

    Note: The flow meter will measure the flow of the supply oil.

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    Illustration 27	g01106553

28. Connect lube line (6) from the test bench to Tooling (F). Maintain an oil pressure of 275 kPa (40 psi).
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    Illustration 28	g01106587
    (7) Pressure tap "A" for the No. 1 clutch (8) Pressure tap "B" for the No. 2 clutch (9) Pressure tap "C" for the No. 7 clutch (10) Pressure tap "E" for the No. 5 clutch (11) Pressure tap "F" for the No. 4 clutch (12) Pressure tap "G" for the No. 6 clutch (13) Pressure tap "H" for the No. 3 clutch

    Note: If you are using individual pressure gauges to measure the pressures, refer to Table 3 for the correct pressure gauges.

29. Connect Tooling (N) to pressure taps (7), (8), (9), (10), (11), (12), and (13).
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    Illustration 29	g01106717
    Pressure Tap for the Priority Reducing Valve (Pilot Oil Pressure)

30. Connect Tooling (N) to Tooling (H).
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    Illustration 30	g01106735
    Transmission Control Supply Pressure

31. Connect Tooling (N) to Tooling (M).

32. Connect Tooling (N) to Tooling (K).

33. Connect Tooling (R) to Tooling (J).
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    Illustration 31	g01106785
    (14) Upshift Solenoid (15) Downshift Solenoid

34. Connect Tooling (P) to solenoid (14) and solenoid (15).
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    Illustration 32	g01106794

35. Connect Tooling (P) to harness connector (16).
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    Illustration 33	g01106846

36. Connect Tooling (P) to a suitable location.
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    Illustration 34	g00877510
    Tooling (P)

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    Illustration 35	g01457869
    Tooling (P)

37. Connect Tooling (P) to a power source. Refer to Tool Operating Manual, NEHS0644 or Tool Operating Manual, NEHS0996 for the correct operating instructions.

    Note: Make sure that the transmission is secured to the test bench. Tighten all bolts to the proper torque.

Test Procedure

TA3 Navigation

1. Select “Off-Highway Trucks”.

2. Select “776-24V” or “777-24V”.

Harness Test (TA3 only)

1. Make sure that the harness is properly connected.

2. Use Tooling (P) to perform the harness test.

3. Record the values in Table 7.

   Note: Do not continue testing until Harness Test passes.

Solenoid Test (TA2 only)

1. Make sure that the harness is properly connected.

2. Use Tooling (P) to perform the solenoid test.

3. Record the values in Table 7.

   Note: Do not continue testing until Solenoid Test passes.

Start Checks

1. If you are using SAE 10W oil, warm the oil to 50 °C (125 °F). If you are using Mobil DTE11 oil, warm the oil to 34 °C (95 °F). Maintain this temperature for the duration of the test.

2. Adjust the input flow to 83 ± 4 L/min (22 ± 1 US gpm).

3. Check the supply pressure. The correct supply pressure is 2689 kPa (390 psi).
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   Illustration 36	g02720621

4. With the transmission in the NEUTRAL position, rotate the input shaft in a counterclockwise direction. Adjust the input rotation to 800 ± 30 rpm.

   Note: The input shaft will be rotated in a counterclockwise direction for the duration of this test. The direction is determined as you face the drive motor of the test bench.

5. The lubrication pressure must be between 41 kPa (6 psi) and 69 kPa (10 psi).

   Note: If there is no lube pressure after 30 seconds, stop input rotation and check connections on test bench and transmission.

6. Record the value in Table 6.

7. Shift the transmission through all gears to eliminate air from the transmission controls.

8. Confirm the correct clutch engagement with Table 4.
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   Table 4

   Clutch Engagement Check
   Gear	Cl 1	Cl 2	Cl 3	Cl 4	Cl 5	Cl 6	Cl 7
   N				X
   R	X						X
   F1	X					X
   F2			X			X
   F3		X				X
   F4			X		X
   F5		X			X
   F6			X	X
   F7		X		X

Priority Reducing Valve

1. Adjust the input flow for the transmission control to 83 ± 4 L/min (22 ± 1 US gpm).

2. Adjust the input rotation to 800 ± 5 rpm in the NEUTRAL position.

3. Shift the transmission to the FORWARD 1 position.

4. Check the pressure for the priority reducing valve. The correct pressure must be 1725 ± 70 kPa (250 ± 10 psi).

5. Record the value in Table 8.

Neutralizer Valve

Note: Eliminate all incoming flow before performing this test. It may be necessary for you to shut down the test bench.

1. Stop the input rotation in any range. Do Not stop the input rotation in the NEUTRAL position. Stop input to the transmission.

2. Adjust the input flow for the transmission control to 83 ± 4 L/min (22 ± 1 US gpm).

3. Adjust the input rotation to 800 ± 5 rpm.

4. The neutralizer valve must prevent a pressure increase at any clutch station.

5. Record the values in Table 9.

6. Shift the transmission to the NEUTRAL position. The clutch pressure that is measured at pressure tap "F" must rise to a normal pressure.

7. Record the value in Table 10.

Transmission Lubrication Relief Valve

1. Adjust the input rotation to 0 rpm.

2. Adjust the input flow for the transmission control until the outlet flow for the cooler outlet is 38 ± 4 L/min (10 ± 1 US gpm).

3. Shift the transmission to FORWARD 1.

4. Use Tooling (L) to momentarily block the flow at the torque converter outlet.

5. The inlet pressure for the transmission oil cooler must be 930 ± 100 kPa (135 ± 15 psi).

6. Record the value in Table 11.

Transmission Lubrication Supply Flow

Note: Measure the leakage in each gear range. The input flow should be approximately 208 ± 4 L/min (55 ± 1 US gpm) when the input speed is 1925 ± 30 rpm.

1. Adjust the input rotation to 800 ± 5 rpm.

2. Shift the transmission to the FORWARD 1 position.

3. Adjust the input rotation to 1925 ± 30 rpm.

4. The lube flow must be 189 ± 4 L/min (50 ± 1 US gpm).

5. Record the input flow in Table 12.

6. Record the lube flow in Table 12.

7. The leakage is obtained by subtracting the lube flow from the input flow.

8. Record the calculation in Table 12.

9. Adjust the input rotation to 800 ± 5 rpm.

10. Shift the transmission through positions FORWARD 2, FORWARD 3, FORWARD 4, FORWARD 5, FORWARD 6, FORWARD 7, REVERSE, and NEUTRAL. Repeat Steps 7 through 5 for each gear range.

    Note: Always shift the transmission back to NEUTRAL when shifting between FORWARD and REVERSE.

11. The difference in lube flow between REVERSE and FORWARD 1 gear ranges shall be no more than 6 L/min (2 US gpm).

12. The lube flow in FORWARD 4 gear range must be less than the flow in FORWARD 1 gear range. The difference must not exceed 5 L/min (1 US gpm).

13. The difference in lube flow between FOURTH and SIXTH gear ranges must not exceed 4 L/min (1 US gpm).

14. The lube flow in FORWARD 3, FORWARD 5, and FORWARD 7gear ranges must be less than the lube flow in FORWARD 2, FORWARD 4, and FORWARD 6 gear ranges. The difference must be 9 ± 3 L/min (4 ± 1 US gpm).

Lube Circuit Check

1. Shift the transmission to FORWARD 2.

2. Adjust the input rotation to 1925 ± 30 rpm.

3. Adjust the input flow for the transmission control until the lube flow is 75 ± 4 L/min (20 ± 1 US gpm). Maintain this flow during this check.

4. The transmission lubrication pressure must be 55 ± 8 kPa (8 ± 2 psi).

5. Record the value in Table 13.

6. Stop the input rotation.

7. Stop the input flow.

Primary Pressure Check

1. Remove Tooling (Q).
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   Illustration 37	g01106881

2. Remove the load piston plugs (17) from selector valve "A", "B", "C", "E", "F", "G", and "H".

3. Install Tooling (Q).

4. Adjust the input flow for the transmission control to 83 ± 4 L/min (22 ± 1 US gpm).

5. The minimum supply pressure is 2690 kPa (390 psi) in all speed ranges.

6. Adjust the input rotation to 800 ± 5 rpm.

7. Shift the transmission through all gears to eliminate air from the transmission controls.

8. Record the primary clutch pressure for each gear range in Table 15.

9. Verify that the primary clutch pressures match the values in Table 14.

Pressure Check (Low Idle)

1. Remove Tooling (Q).

2. Install load piston plugs (17). Refer to Special Instruction, "Pressure Check (Primary)".

3. Install Tooling (Q).

4. Adjust the input flow for the transmission control to 83 ± 4 L/min (22 ± 1 US gpm).

5. The minimum supply pressure is 2690 kPa (390 psi) in all speed ranges.

6. Adjust the input rotation to 800 ± 5 rpm in the NEUTRAL position.

7. Shift the transmission through ranges NEUTRAL, REVERSE, and FORWARD 1.

   Note: Always shift the transmission back to NEUTRAL when shifting between FORWARD and REVERSE.

8. Record the clutch pressure for each gear range in Table 17.

9. Verify that the clutch pressures match the values in Table 16.

Pressure Check (High Idle)

1. Adjust the input flow for the transmission control to 170 ± 4 L/min (45 ± 1 US gpm).

2. The maximum supply pressure is 3120 kPa (452 psi) in all speed ranges.

3. Adjust the input rotation to 800 ± 5 rpm with the transmission in the NEUTRAL position.

4. Adjust the input rotation to 1925 ± 30 rpm.

5. Record the clutch pressure in Table 19.

6. Adjust the input rotation to 800 ± 5 rpm.

7. Shift the transmission through positions REVERSE, FORWARD 1, FORWARD 2, FORWARD 3, FORWARD 4, FORWARD 5, FORWARD 6, and FORWARD 7. Repeat Steps 7 through 9 for each gear range.

   Note: Always shift the transmission back to NEUTRAL when shifting between FORWARD and REVERSE.

8. Adjust the input rotation to 800 ± 5 rpm.

9. Verify that the clutch pressures match the values in Table 18.

Contamination Control

1. Take an oil sample of the test bench oil supply. Oil contamination must be maximum ISO 16/13.

2. Record the results in Table 15.

3. Remove the transmission from the test bench if the test bench oil supply is within specifications.

Transmission Bench Test Data Sheet

Table 5

CATERPILLAR	Transmission Bench Test Data Sheet	Test Date:_______
		Model:_______
Work Order:_______		Serial No.:_______

Lubrication Pressure

Table 6

Lubrication Pressure

Input Speed (800 ± 30 rpm) Input Flow 83 ± 4 L/min (22 ± 1 US gpm)

_______kPa _______(psi)

Solenoid Test

Table 7

Solenoid Test	Solenoid 1	Solenoid 2
	_______ ohms	_______ ohms

Priority Reducing Valve

Table 8

Priority Reducing Valve

Input Speed (800 ± 5 rpm) Input Flow 83 ± 4 L/min (22 ± 1 US gpm)

_______kPa _______(psi)

Neutralizer Valve

Table 9

Neutralizer Valve (Step 1)			Input Speed (800 ± 5 rpm) Input Flow 83 ± 4 L/min (22 ± 1 US gpm)
A	B	C	E	F	G	H
_______kPa _______(psi)	_______kPa _______(psi)	_______kPa _______(psi)	_______kPa _______(psi)	_______kPa _______(psi)	_______kPa _______(psi)	_______kPa _______(psi)

Table 10

Neutralizer Valve (Step 2)		Gear Range NEUTRAL
Station	F	_______kPa _______(psi)	The clutch pressure must rise to normal pressure.		Yes	No

Transmission Lubrication Relief Valve

Table 11

Torque Converter Inlet Relief Valve

Input Speed (0 rpm) Input Flow 38 ± 4 L/min (10 ± 1 US gpm)

_______kPa _______(psi)

Transmission Lubrication Supply Flow

Table 12

Clutch Leakage Check		Input Speed (1925 ± 30 rpm) Input Flow 208 ± 4 L/min (55 ± 4 US gpm)
Gear Range	R	F1	F2	F3	F4	F5	F6	F7	F8F
Input Flow	______	______	______	______	______	______	______	______	______
Lube Flow	______	______	______	______	______	______	______	______	______
Leakage	______	______	______	______	______	______	______	______	______

Lube Circuit Check

Table 13

Lube Circuit Check		Gear Range FORWARD 2 Output Flow 75 ± 4 L/min (20 ± 1 US gpm)
Transmission Lubrication Pressure	_______kPa _______(psi)

Primary Pressure Check

Table 14

Primary Clutch Pressure
Station		"A"	"B"	"C"	"E"	"F"	"G"	"H"
Gear	Engaged Clutches	Cl 1(1)	Cl 2(1)	Cl 7(1)	Cl 5(1)	Cl 4(1)	Cl 6(1)	Cl 3(1)
N	4					345 kPa (50 psi)
R	1 and 7	345 kPa (50 psi)		345 kPa (50 psi)
F1	1 and 6	345 kPa (50 psi)					345 kPa (50 psi)
F2	3 and 6						345 kPa (50 psi)	275 kPa (40 psi)
F3	2 and 6		450 kPa (65 psi)				345 kPa (50 psi)
F4	3 and 5				275 kPa (40 psi)			275 kPa (40 psi)
F5	2 and 5		450 kPa (65 psi)		275 kPa (50 psi)
F6	3 and 4					345 kPa (50 psi)		275 kPa (40 psi)
F7	2 and 4		450 kPa (65 psi)			345 kPa (50 psi)

(1)	The tolerance is + 50 − 35 kPa (+ 7 − 5 psi).

Table 15

Primary Clutch Pressure
Station		"A"	"B"	"C"	"E"	"F"	"G"	"H"
Gear	Engaged Clutches	Cl 1(1)	Cl 2(1)	Cl 7(1)	Cl 5(1)	Cl 4(1)	Cl 6(1)	Cl 3(1)
N	4
R	1 and 7
F1	1 and 6
F2	3 and 6
F3	2 and 6
F4	3 and 5
F5	2 and 5
F6	3 and 4
F7	2 and 4

(1)	The tolerance is + 50 − 35 kPa (+ 7 − 5 psi).

Pressure Check (Low Idle)

Table 16

Pressure Check (Low Idle)
Station		"A"	"B"	"C"	"E"	"F"	"G"	"H"
Gear	Engaged Clutches	Cl 1(1)	Cl 2(1)	Cl 7(1)	Cl 5(1)	Cl 4(1)	Cl 6(1)	Cl 3(1)
N	4					2070 kPa (300 psi)
R	1 and 7	2740 kPa (397 psi)		2750 kPa (399 psi)
F1	1 and 6	2740 kPa (397 psi)					2750 kPa (399 psi)

(1)	The tolerance is + 240 − 100 kPa (+ 35 − 15 psi).

Table 17

Pressure Check (Low Idle)					Load Pistons are installed. Input Speed (800 ± 5 rpm)
Gear	Engaged Clutches		A	B	C	E	F	G	H
N	4	-
R	1	7
F1	1	6

Pressure Check (High Idle)

Table 18

Pressure Check (High Idle)
Station		"A"	"B"	"C"	"E"	"F"	"G"	"H"
Gear	Engaged Clutches	Cl 1(1)	Cl 2(1)	Cl 7(1)	Cl 5(1)	Cl 4(1)	Cl 6(1)	Cl 3(1)
N	4					2070 kPa (300 psi)
R	1 and 7	2920 kPa (423 psi)		2875 kPa (417 psi)
F1	1 and 6	2920 kPa (423 psi)					2880 kPa (418 psi)
F2	3 and 6						2880 kPa (418 psi)	2105 kPa (305 psi)
F3	2 and 6	2270 kPa (329 psi)					2880 kPa (418 psi)
F4	3 and 5				2105 kPa (305 psi)			2105 kPa (305 psi)
F5	2 and 5		2270 kPa (329 psi)		2105 kPa (305 psi)
F6	3 and 4					2070 kPa (300 psi)		2105 kPa (305 psi)
F7	2 and 4		2270 kPa (329 psi)			2070 kPa (300 psi)

(1)	The tolerance is + 240 − 100 kPa (+ 35 − 15 psi).

Table 19

Pressure Check (High Idle)
Station		"A"	"B"	"C"	"E"	"F"	"G"	"H"
Gear	Engaged Clutches	Cl 1(1)	Cl 2(1)	Cl 7(1)	Cl 5(1)	Cl 4(1)	Cl 6(1)	Cl 3(1)
N	4
R	1 and 7
F1	1 and 6
F2	3 and 6
F3	2 and 6
F4	3 and 5
F5	2 and 5
F6	3 and 4
F7	2 and 4

(1)	The tolerance is + 240 − 100 kPa (+ 35 − 15 psi).

Contamination Control

Table 20

ISO Particle Count

Sample the test bench oil supply.

________/________Particle Count

Table 21

______________________________________ Technician

______________________________________ Supervisor